src/rrd_tool.c

   1 /*****************************************************************************
   2  * RRDtool 1.1.x  Copyright Tobias Oetiker, 1997 - 2004
   3  *****************************************************************************
   4  * rrd_tool.c  Startup wrapper
   5  *****************************************************************************/
   6
   7 #include "rrd_tool.h"
   8 #include "rrd_xport.h"
   9
  10 void PrintUsage(char *cmd);
  11 int CountArgs(char *aLine);
  12 int CreateArgs(char *, char *, int, char **);
  13 int HandleInputLine(int, char **, FILE*);
  14 int RemoteMode=0;
  15 int ChangeRoot=0;
  16 #define TRUE            1
  17 #define FALSE           0
  18 #define MAX_LENGTH      10000
  19
  20
  21 void PrintUsage(char *cmd)
  22 {
  23
  24     char help_main[] =
  25            "RRDtool 1.1.x  Copyright 1997-2004 by Tobias Oetiker <tobi@oetiker.ch>\n"
  26 #ifndef WIN32
  27            "               Compiled " MAKE_TIMESTAMP "\n\n"
  28 #else
  29            "               Compiled " __DATE__ " " __TIME__ "\n\n"
  30 #endif
  31            "Usage: rrdtool [options] command command_options\n\n";
  32
  33     char help_list[] =
  34            "Valid commands: create, update, updatev, graph, dump, restore,\n"
  35            "\t\tlast, info, fetch, tune, resize, xport\n\n";
  36
  37     char help_listremote[] =
  38            "Valid remote commands: quit, ls, cd, mkdir\n\n";
  39
  40
  41     char help_create[] =
  42            "* create - create a new RRD\n\n"
  43            "\trrdtool create filename [--start|-b start time]\n"
  44            "\t\t[--step|-s step]\n"
  45            "\t\t[DS:ds-name:DST:dst arguments]\n"
  46            "\t\t[RRA:CF:cf arguments]\n\n";
  47
  48     char help_dump[] =
  49            "* dump - dump an RRD to XML\n\n"
  50            "\trrdtool dump filename.rrd >filename.xml\n\n";
  51
  52     char help_info[] =
  53            "* info - returns the configuration and status of the RRD\n\n"
  54            "\trrdtool info filename.rrd\n\n";
  55
  56     char help_restore[] =
  57            "* restore - restore an RRD file from its XML form\n\n"
  58            "\trrdtool restore [--range-check|-r] [--force-overwrite|-f] filename.xml filename.rrd\n\n";
  59
  60     char help_last[] =
  61            "* last - show last update time for RRD\n\n"
  62            "\trrdtool last filename.rrd\n\n";
  63
  64     char help_update[] =
  65            "* update - update an RRD\n\n"
  66            "\trrdtool update filename\n"
  67            "\t\t--template|-t ds-name:ds-name:...\n"
  68            "\t\ttime|N:value[:value...]\n\n"
  69            "\t\tat-time@value[:value...]\n\n"
  70            "\t\t[ time:value[:value...] ..]\n\n";
  71
  72         char help_updatev[] =
  73            "* updatev - a verbose verion of update\n"
  74            "\treturns information about values, RRAs, and datasources updated\n\n"
  75            "\trrdtool updatev filename\n"
  76            "\t\t--template|-t ds-name:ds-name:...\n"
  77            "\t\ttime|N:value[:value...]\n\n"
  78            "\t\tat-time@value[:value...]\n\n"
  79            "\t\t[ time:value[:value...] ..]\n\n";
  80
  81     char help_fetch[] =
  82            "* fetch - fetch data out of an RRD\n\n"
  83            "\trrdtool fetch filename.rrd CF\n"
  84            "\t\t[--resolution|-r resolution]\n"
  85            "\t\t[--start|-s start] [--end|-e end]\n\n";
  86
  87     char help_graph[] =
  88            "* graph - generate a graph from one or several RRD\n\n"
  89            "\trrdtool graph filename [-s|--start seconds] [-e|--end seconds]\n"
  90            "\t\t[-x|--x-grid x-axis grid and label]\n"
  91            "\t\t[--alt-y-grid]\n"
  92            "\t\t[-y|--y-grid y-axis grid and label]\n"
  93            "\t\t[-v|--vertical-label string] [-w|--width pixels]\n"
  94            "\t\t[-h|--height pixels] [-o|--logarithmic]\n"
  95            "\t\t[-u|--upper-limit value] [-z|--lazy]\n"
  96            "\t\t[-l|--lower-limit value] [-r|--rigid]\n"
  97            "\t\t[-g|--no-legend]\n"
  98            "\t\t[-j|--only-graph]\n"
  99            "\t\t[--font FONTTAG:size:font]\n"
 100            "\t\t[--zoom factor]\n"
 101            "\t\t[--alt-autoscale]\n"
 102            "\t\t[--alt-autoscale-max]\n"
 103            "\t\t[--units-exponent value]\n"
 104            "\t\t[--step seconds]\n"
 105            "\t\t[-f|--imginfo printfstr]\n"
 106            "\t\t[-a|--imgformat PNG]\n"
 107            "\t\t[-c|--color COLORTAG#rrggbb[aa]] [-t|--title string]\n"
 108            "\t\t[DEF:vname=rrd:ds-name:CF]\n"
 109            "\t\t[CDEF:vname=rpn-expression]\n"
 110            "\t\t[PRINT:vname:CF:format]\n"
 111            "\t\t[GPRINT:vname:CF:format]\n"
 112            "\t\t[HRULE:value#rrggbb[aa][:legend]]\n"
 113            "\t\t[VRULE:value#rrggbb[aa][:legend]]\n"
 114            "\t\t[LINE{1|2|3}:vname[#rrggbb[aa][:legend]]]\n"
 115            "\t\t[AREA:vname[#rrggbb[aa][:legend]]]\n"
 116            "\t\t[STACK:vname[#rrggbb[aa][:legend]]]\n\n";
 117
 118     char help_tune[] =
 119            " * tune -  Modify some basic properties of an RRD\n\n"
 120            "\trrdtool tune filename\n"
 121            "\t\t[--heartbeat|-h ds-name:heartbeat]\n"
 122            "\t\t[--data-source-type|-d ds-name:DST]\n"
 123            "\t\t[--data-source-rename|-r old-name:new-name]\n"
 124            "\t\t[--minimum|-i ds-name:min] [--maximum|-a ds-name:max]\n"
 125            "\t\t[--deltapos scale-value] [--deltaneg scale-value]\n"
 126            "\t\t[--failure-threshold integer]\n"
 127            "\t\t[--window-length integer]\n"
 128            "\t\t[--alpha adaptation-parameter]\n"
 129            "\t\t[--beta adaptation-parameter]\n"
 130            "\t\t[--gamma adaptation-parameter]\n"
 131            "\t\t[--gamma-deviation adaptation-parameter]\n"
 132            "\t\t[--aberrant-reset ds-name]\n\n";
 133
 134     char help_resize[] =
 135            " * resize - alter the lenght of one of the RRAs in an RRD\n\n"
 136            "\trrdtool resize filename rranum GROW|SHRINK rows\n\n";
 137
 138     char help_xport[] =
 139            "* xport - generate XML dump from one or several RRD\n\n"
 140            "\trrdtool xport [-s|--start seconds] [-e|--end seconds]\n"
 141            "\t\t[-m|--maxrows rows]\n"
 142            "\t\t[--step seconds]\n"
 143            "\t\t[DEF:vname=rrd:ds-name:CF]\n"
 144            "\t\t[CDEF:vname=rpn-expression]\n"
 145            "\t\t[XPORT:vname:legend]\n\n";
 146
 147     char help_quit[] =
 148            " * quit - closeing a session in remote mode\n\n"
 149            "\trrdtool quit\n\n";
 150
 151     char help_ls[] =
 152            " * ls - lists all *.rrd files in current directory\n\n"
 153            "\trrdtool ls\n\n";
 154
 155     char help_cd[] =
 156            " * cd - changes the current directory\n\n"
 157            "\trrdtool cd new direcotry\n\n";
 158
 159     char help_mkdir[] =
 160            " * mkdir - creates a new direcotry\n\n"
 161            "\trrdtool mkdir newdirecotryname\n\n";
 162
 163     char help_lic[] =
 164            "RRDtool is distributed under the Terms of the GNU General\n"
 165            "Public License Version 2. (www.gnu.org/copyleft/gpl.html)\n\n"
 166
 167            "For more information read the RRD manpages\n\n";
 168
 169     enum { C_NONE, C_CREATE, C_DUMP, C_INFO, C_RESTORE, C_LAST,
 170            C_UPDATE, C_FETCH, C_GRAPH, C_TUNE, C_RESIZE, C_XPORT,
 171            C_QUIT, C_LS, C_CD, C_MKDIR, C_UPDATEV };
 172
 173     int help_cmd = C_NONE;
 174
 175     if (cmd)
 176         {
 177             if (!strcmp(cmd,"create"))
 178                 help_cmd = C_CREATE;
 179             else if (!strcmp(cmd,"dump"))
 180                 help_cmd = C_DUMP;
 181             else if (!strcmp(cmd,"info"))
 182                 help_cmd = C_INFO;
 183             else if (!strcmp(cmd,"restore"))
 184                 help_cmd = C_RESTORE;
 185             else if (!strcmp(cmd,"last"))
 186                 help_cmd = C_LAST;
 187             else if (!strcmp(cmd,"update"))
 188                 help_cmd = C_UPDATE;
 189             else if (!strcmp(cmd,"updatev"))
 190                 help_cmd = C_UPDATEV;
 191             else if (!strcmp(cmd,"fetch"))
 192                 help_cmd = C_FETCH;
 193             else if (!strcmp(cmd,"graph"))
 194                 help_cmd = C_GRAPH;
 195             else if (!strcmp(cmd,"tune"))
 196                 help_cmd = C_TUNE;
 197             else if (!strcmp(cmd,"resize"))
 198                 help_cmd = C_RESIZE;
 199             else if (!strcmp(cmd,"xport"))
 200                 help_cmd = C_XPORT;
 201             else if (!strcmp(cmd,"quit"))
 202                 help_cmd = C_QUIT;
 203             else if (!strcmp(cmd,"ls"))
 204                 help_cmd = C_LS;
 205             else if (!strcmp(cmd,"cd"))
 206                 help_cmd = C_CD;
 207             else if (!strcmp(cmd,"mkdir"))
 208                 help_cmd = C_MKDIR;
 209         }
 210     fputs(help_main, stdout);
 211     switch (help_cmd)
 212         {
 213             case C_NONE:
 214                 fputs(help_list, stdout);
 215                 if (RemoteMode){
 216                    fputs(help_listremote, stdout);
 217                 }
 218                 break;
 219             case C_CREATE:
 220                 fputs(help_create, stdout);
 221                 break;
 222             case C_DUMP:
 223                 fputs(help_dump, stdout);
 224                 break;
 225             case C_INFO:
 226                 fputs(help_info, stdout);
 227                 break;
 228             case C_RESTORE:
 229                 fputs(help_restore, stdout);
 230                 break;
 231             case C_LAST:
 232                 fputs(help_last, stdout);
 233                 break;
 234             case C_UPDATE:
 235                 fputs(help_update, stdout);
 236                 break;
 237             case C_UPDATEV:
 238                 fputs(help_updatev, stdout);
 239                 break;
 240             case C_FETCH:
 241                 fputs(help_fetch, stdout);
 242                 break;
 243             case C_GRAPH:
 244                 fputs(help_graph, stdout);
 245                 break;
 246             case C_TUNE:
 247                 fputs(help_tune, stdout);
 248                 break;
 249             case C_RESIZE:
 250                 fputs(help_resize, stdout);
 251                 break;
 252             case C_XPORT:
 253                 fputs(help_xport, stdout);
 254                 break;
 255             case C_QUIT:
 256                 fputs(help_quit, stdout);
 257                 break;
 258             case C_LS:
 259                 fputs(help_ls, stdout);
 260                 break;
 261             case C_CD:
 262                 fputs(help_cd, stdout);
 263                 break;
 264             case C_MKDIR:
 265                 fputs(help_mkdir, stdout);
 266                 break;
 267         }
 268     fputs(help_lic, stdout);
 269 }
 270
 271
 272 int main(int argc, char *argv[])
 273 {
 274     char **myargv;
 275     char aLine[MAX_LENGTH];
 276 #ifdef HAVE_CHROOT
 277     char *firstdir="";
 278 #endif
 279 #ifdef MUST_DISABLE_SIGFPE
 280     signal(SIGFPE,SIG_IGN);
 281 #endif
 282 #ifdef MUST_DISABLE_FPMASK
 283     fpsetmask(0);
 284 #endif
 285     if (argc == 1)
 286         {
 287             PrintUsage("");
 288             return 0;
 289         }
 290
 291     if (((argc == 2)||(argc == 3)) && !strcmp("-",argv[1]))
 292         {
 293 #if HAVE_GETRUSAGE
 294           struct rusage  myusage;
 295           struct timeval starttime;
 296           struct timeval currenttime;
 297           struct timezone tz;
 298
 299             tz.tz_minuteswest =0;
 300             tz.tz_dsttime=0;
 301             gettimeofday(&starttime,&tz);
 302 #endif
 303           RemoteMode=1;
 304 #ifdef HAVE_CHROOT
 305           if ((argc == 3) && strcmp("",argv[2])){
 306              if (getuid()==0){
 307                 chroot(argv[2]);
 308                 if (errno!=0){
 309                    fprintf(stderr,"ERROR: can't change root to '%s' errno=%d\n",
 310                            argv[2],errno);
 311                     exit(errno);
 312                 }
 313                 ChangeRoot=1;
 314                 firstdir="/";
 315              }
 316              else{
 317                 firstdir=argv[2];
 318              }
 319           }
 320           if (strcmp(firstdir,"")){
 321              chdir(firstdir);
 322              if (errno!=0){
 323                 fprintf(stderr,"ERROR: %s\n",strerror(errno));
 324                 exit(errno);
 325              }
 326           }
 327 #else
 328           fprintf(stderr,"ERROR: change root is not supported by your OS "
 329                          "or at least by this copy of rrdtool\n");
 330           exit(1);
 331 #endif
 332
 333             while (fgets(aLine, sizeof(aLine)-1, stdin)){
 334                 if ((argc = CountArgs(aLine)) == 0)  {
 335                     fprintf(stderr,"ERROR: not enough arguments\n");
 336                 }
 337                 if ((myargv = (char **) malloc((argc+1) *
 338                                                sizeof(char *))) == NULL)   {
 339                     perror("malloc");
 340                     return -1;
 341                 }
 342                 if ((argc=CreateArgs(argv[0], aLine, argc, myargv)) < 0) {
 343                     fprintf(stderr, "ERROR: creating arguments\n");
 344                     return -1;
 345                 }
 346
 347                 if (HandleInputLine(argc, myargv, stdout))
 348                     return -1;
 349                 free(myargv);
 350
 351 #if HAVE_GETRUSAGE
 352                 getrusage(RUSAGE_SELF,&myusage);
 353                 gettimeofday(&currenttime,&tz);
 354                 printf("OK u:%1.2f s:%1.2f r:%1.2f\n",
 355                        (double)myusage.ru_utime.tv_sec+
 356                        (double)myusage.ru_utime.tv_usec/1000000.0,
 357                        (double)myusage.ru_stime.tv_sec+
 358                        (double)myusage.ru_stime.tv_usec/1000000.0,
 359                        (double)(currenttime.tv_sec-starttime.tv_sec)
 360                        +(double)(currenttime.tv_usec-starttime.tv_usec)
 361                        /1000000.0);
 362 #else
 363                 printf("OK\n");
 364 #endif
 365                 fflush(stdout); /* this is important for pipes to work */
 366             }
 367         }
 368     else if (argc == 2)
 369         {
 370                 PrintUsage(argv[1]);
 371                 exit(0);
 372         }
 373     else if (argc == 3 && !strcmp(argv[1],"help"))
 374         {
 375                 PrintUsage(argv[2]);
 376                 exit(0);
 377         }
 378     else
 379         HandleInputLine(argc, argv, stderr);
 380     return 0;
 381 }
 382
 383 /* HandleInputLine is NOT thread safe - due to readdir issues,
 384    resolving them portably is not really simple. */
 385 int HandleInputLine(int argc, char **argv, FILE* out)
 386 {
 387 #if defined(HAVE_OPENDIR) && defined (HAVE_READDIR)
 388     DIR           *curdir; /* to read current dir with ls */
 389     struct dirent *dent;
 390 #endif
 391 #if defined(HAVE_SYS_STAT_H)
 392     struct stat   st;
 393 #endif
 394     optind=0; /* reset gnu getopt */
 395     opterr=0; /* no error messages */
 396
 397     if (RemoteMode){
 398        if (argc>1 && strcmp("quit", argv[1]) == 0){
 399           if (argc>2){
 400              printf("ERROR: invalid parameter count for quit\n");
 401              return(0);
 402           }
 403           exit(0);
 404        }
 405 #if defined(HAVE_OPENDIR) && defined(HAVE_READDIR) && defined(HAVE_CHDIR)
 406        if (argc>1 && strcmp("cd", argv[1]) == 0){
 407           if (argc>3){
 408              printf("ERROR: invalid parameter count for cd\n");
 409              return(0);
 410           }
 411 #if ! defined(HAVE_CHROOT) || ! defined(HAVE_GETUID)
 412           if (getuid()==0 && ! ChangeRoot){
 413              printf("ERROR: chdir security problem - rrdtool is runnig as "
 414                     "root an no chroot!\n");
 415              return(0);
 416           }
 417 #endif
 418           chdir(argv[2]);
 419           if (errno!=0){
 420              printf("ERROR: %s\n",strerror(errno));
 421           }
 422           return(0);
 423        }
 424        if (argc>1 && strcmp("mkdir", argv[1]) == 0){
 425           if (argc>3){
 426              printf("ERROR: invalid parameter count for mkdir\n");
 427              return(0);
 428           }
 429 #if ! defined(HAVE_CHROOT) || ! defined(HAVE_GETUID)
 430           if (getuid()==0 && ! ChangeRoot){
 431              printf("ERROR: mkdir security problem - rrdtool is runnig as "
 432                     "root an no chroot!\n");
 433              return(0);
 434           }
 435 #endif
 436           mkdir(argv[2],0777);
 437           if (errno!=0){
 438              printf("ERROR: %s\n",strerror(errno));
 439           }
 440           return(0);
 441        }
 442        if (argc>1 && strcmp("ls", argv[1]) == 0){
 443           if (argc>2){
 444              printf("ERROR: invalid parameter count for ls\n");
 445              return(0);
 446           }
 447           if ((curdir=opendir("."))!=NULL){
 448              while((dent=readdir(curdir))!=NULL){
 449                 if (!stat(dent->d_name,&st)){
 450                    if (S_ISDIR(st.st_mode)){
 451                       printf("d %s\n",dent->d_name);
 452                    }
 453                    if (strlen(dent->d_name)>4 && S_ISREG(st.st_mode)){
 454                       if (!strcmp(dent->d_name+NAMLEN(dent)-4,".rrd") ||
 455                           !strcmp(dent->d_name+NAMLEN(dent)-4,".RRD")){
 456                          printf("- %s\n",dent->d_name);
 457                       }
 458                    }
 459                 }
 460              }
 461           }
 462           else{
 463              printf("ERROR: %s\n",strerror(errno));
 464              return(errno);
 465           }
 466           return(0);
 467        }
 468 #endif /* opendir and readdir */
 469
 470     }
 471     if (argc < 3
 472         || strcmp("help", argv[1]) == 0
 473         || strcmp("--help", argv[1]) == 0
 474         || strcmp("-help", argv[1]) == 0
 475         || strcmp("-?", argv[1]) == 0
 476         || strcmp("-h", argv[1]) == 0 ) {
 477         PrintUsage("");
 478         return 0;
 479     }
 480
 481     if (strcmp("create", argv[1]) == 0)
 482         rrd_create(argc-1, &argv[1]);
 483     else if (strcmp("dump", argv[1]) == 0)
 484         rrd_dump(argc-1, &argv[1]);
 485     else if (strcmp("info", argv[1]) == 0
 486                 || strcmp("updatev", argv[1]) == 0){
 487         info_t *data,*save;
 488         if (strcmp("info",argv[1]) == 0)
 489            data=rrd_info(argc-1, &argv[1]);
 490     else
 491            data=rrd_update_v(argc-1, &argv[1]);
 492         while (data) {
 493             save=data;
 494             printf ("%s = ", data->key);
 495             free(data->key);
 496
 497             switch (data->type) {
 498             case RD_I_VAL:
 499                 if (isnan (data->value.u_val))
 500                     printf("NaN");
 501                 else
 502                     printf ("%0.10e", data->value.u_val);
 503                 break;
 504             case RD_I_CNT:
 505                 printf ("%lu", data->value.u_cnt);
 506                 break;
 507             case RD_I_INT:
 508                 printf ("%d", data->value.u_int);
 509                 break;
 510             case RD_I_STR:
 511                 printf ("\"%s\"", data->value.u_str);
 512                 free(data->value.u_str);
 513                 break;
 514             }
 515             data = data->next;
 516             free(save);
 517             printf ("\n");
 518         }
 519         free(data);
 520     }
 521
 522     else if (strcmp("--version", argv[1]) == 0 ||
 523              strcmp("version", argv[1]) == 0 ||
 524              strcmp("v", argv[1]) == 0 ||
 525              strcmp("-v", argv[1]) == 0  ||
 526              strcmp("-version", argv[1]) == 0  )
 527         printf("RRDtool 1.1.x  Copyright (C) 1997-2004 by Tobias Oetiker <tobi@oetiker.ch>\n");
 528     else if (strcmp("restore", argv[1]) == 0)
 529         rrd_restore(argc-1, &argv[1]);
 530     else if (strcmp("resize", argv[1]) == 0)
 531         rrd_resize(argc-1, &argv[1]);
 532     else if (strcmp("last", argv[1]) == 0)
 533         printf("%ld\n",rrd_last(argc-1, &argv[1]));
 534     else if (strcmp("update", argv[1]) == 0)
 535         rrd_update(argc-1, &argv[1]);
 536     else if (strcmp("fetch", argv[1]) == 0) {
 537         time_t        start,end, ti;
 538         unsigned long step, ds_cnt,i,ii;
 539         rrd_value_t   *data,*datai;
 540         char          **ds_namv;
 541         if (rrd_fetch(argc-1, &argv[1],&start,&end,&step,&ds_cnt,&ds_namv,&data) != -1) {
 542             datai=data;
 543             printf("           ");
 544             for (i = 0; i<ds_cnt;i++)
 545                 printf("%20s",ds_namv[i]);
 546             printf ("\n\n");
 547             for (ti = start+step; ti <= end; ti += step){
 548                 printf("%10lu:", ti);
 549                 for (ii = 0; ii < ds_cnt; ii++)
 550                     printf(" %0.10e", *(datai++));
 551                 printf("\n");
 552             }
 553             for (i=0;i<ds_cnt;i++)
 554                   free(ds_namv[i]);
 555             free(ds_namv);
 556             free (data);
 557         }
 558     } else if (strcmp("xport", argv[1]) == 0) {
 559         int xxsize;
 560         unsigned long int j = 0;
 561         time_t        start,end, ti;
 562         unsigned long step, col_cnt,row_cnt;
 563         rrd_value_t   *data,*ptr;
 564         char          **legend_v;
 565         if(rrd_xport(argc-1, &argv[1], &xxsize,&start,&end,&step,&col_cnt,&legend_v,&data) != -1) {
 566           row_cnt = (end-start)/step;
 567           ptr = data;
 568           printf("<?xml version=\"1.0\" encoding=\"%s\"?>\n\n", XML_ENCODING);
 569           printf("<%s>\n", ROOT_TAG);
 570           printf("  <%s>\n", META_TAG);
 571           printf("    <%s>%lu</%s>\n", META_START_TAG, start+step, META_START_TAG);
 572           printf("    <%s>%lu</%s>\n", META_STEP_TAG, step, META_STEP_TAG);
 573           printf("    <%s>%lu</%s>\n", META_END_TAG, end, META_END_TAG);
 574           printf("    <%s>%lu</%s>\n", META_ROWS_TAG, row_cnt, META_ROWS_TAG);
 575           printf("    <%s>%lu</%s>\n", META_COLS_TAG, col_cnt, META_COLS_TAG);
 576           printf("    <%s>\n", LEGEND_TAG);
 577           for (j = 0; j < col_cnt; j++) {
 578             char *entry = NULL;
 579             entry = legend_v[j];
 580             printf("      <%s>%s</%s>\n", LEGEND_ENTRY_TAG, entry, LEGEND_ENTRY_TAG);
 581             free(entry);
 582           }
 583           free(legend_v);
 584           printf("    </%s>\n", LEGEND_TAG);
 585           printf("  </%s>\n", META_TAG);
 586           printf("  <%s>\n", DATA_TAG);
 587           for (ti = start+step; ti <= end; ti += step) {
 588             printf ("    <%s>", DATA_ROW_TAG);
 589             printf ("<%s>%lu</%s>", COL_TIME_TAG, ti, COL_TIME_TAG);
 590             for (j = 0; j < col_cnt; j++) {
 591               rrd_value_t newval = DNAN;
 592               newval = *ptr;
 593               if(isnan(newval)){
 594                 printf("<%s>NaN</%s>", COL_DATA_TAG, COL_DATA_TAG);
 595               } else {
 596                 printf("<%s>%0.10e</%s>", COL_DATA_TAG, newval, COL_DATA_TAG);
 597               };
 598               ptr++;
 599             }
 600             printf("</%s>\n", DATA_ROW_TAG);
 601           }
 602           free(data);
 603           printf("  </%s>\n", DATA_TAG);
 604           printf("</%s>\n", ROOT_TAG);
 605         }
 606     }
 607     else if (strcmp("graph", argv[1]) == 0) {
 608         char **calcpr;
 609         const char *imgfile = argv[2]; /* rrd_graph changes argv pointer */
 610         int xsize, ysize;
 611         int i;
 612         int tostdout = (strcmp(argv[2],"-") == 0);
 613         if( rrd_graph(argc-1, &argv[1], &calcpr, &xsize, &ysize, NULL) != -1 ) {
 614             if (!tostdout)
 615                 printf ("%dx%d\n",xsize,ysize);
 616             if (calcpr) {
 617                 for(i=0;calcpr[i];i++){
 618                     if (!tostdout)
 619                         printf("%s\n",calcpr[i]);
 620                     free(calcpr[i]);
 621                 }
 622                 free(calcpr);
 623             }
 624         }
 625
 626     } else if (strcmp("tune", argv[1]) == 0)
 627                 rrd_tune(argc-1, &argv[1]);
 628     else {
 629                 rrd_set_error("unknown function '%s'",argv[1]);
 630     }
 631     if (rrd_test_error()) {
 632         fprintf(out, "ERROR: %s\n",rrd_get_error());
 633         rrd_clear_error();
 634     }
 635     return(0);
 636 }
 637
 638 int CountArgs(char *aLine)
 639 {
 640     int i=0;
 641     int aCount = 0;
 642     int inarg = 0;
 643     while (aLine[i] == ' ') i++;
 644     while (aLine[i] != 0){
 645         if((aLine[i]== ' ') && inarg){
 646             inarg = 0;
 647         }
 648         if((aLine[i]!= ' ') && ! inarg){
 649             inarg = 1;
 650             aCount++;
 651         }
 652         i++;
 653     }
 654     return aCount;
 655 }
 656
 657 /*
 658  * CreateArgs - take a string (aLine) and tokenize
 659  */
 660 int CreateArgs(char *pName, char *aLine, int argc, char **argv)
 661 {
 662     char        *getP, *putP;
 663     char        **pargv = argv;
 664     char        Quote = 0;
 665     int inArg = 0;
 666     int len;
 667
 668     len = strlen(aLine);
 669     /* remove trailing space and newlines */
 670     while (len && aLine[len] <= ' ') {
 671         aLine[len] = 0 ; len--;
 672     }
 673     /* sikp leading blanks */
 674     while (*aLine && *aLine <= ' ') aLine++;
 675
 676     pargv[0] = pName;
 677     argc = 1;
 678     getP = aLine;
 679     putP = aLine;
 680     while (*getP){
 681         switch (*getP) {
 682         case ' ':
 683             if (Quote){
 684                 *(putP++)=*getP;
 685             } else
 686                 if(inArg) {
 687                     *(putP++) = 0;
 688                     inArg = 0;
 689                 }
 690             break;
 691         case '"':
 692         case '\'':
 693             if (Quote != 0) {
 694                 if (Quote == *getP)
 695                     Quote = 0;
 696                 else {
 697                     *(putP++)=*getP;
 698                 }
 699             } else {
 700                 if(!inArg){
 701                     pargv[argc++] = putP;
 702                     inArg=1;
 703                 }
 704                 Quote = *getP;
 705             }
 706             break;
 707         default:
 708             if(!inArg){
 709                 pargv[argc++] = putP;
 710                 inArg=1;
 711             }
 712             *(putP++)=*getP;
 713             break;
 714         }
 715         getP++;
 716     }
 717
 718     *putP = '\0';
 719
 720     if (Quote)
 721         return -1;
 722     else
 723         return argc;
 724 }
 725
 726